The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Hydration Status in Adolescent Judo Athletes Before and After Training in the Heat
Abstract
Adolescent judo athletes who train in tropical climates may be in a persistent state of dehydration because they frequently restrict fluids during daily training sessions to maintain or reduce their body weight and are not given enough opportunities to drink. Purpose: Determine the body hydration status of adolescent judo athletes before, immediately after, and 24 h after (24H) a training session and document sweat Na+ loss and symptoms of dehydration. Methods: Body mass and urine color and specific gravity (USG) were measured before, after, and 24 h after a training session in a high-heat-stress environment (29.5 ± 1.0°C; 77.7 ± 6.1% RH) in 24 adolescent athletes. Sweat sodium loss was also determined. A comparison was made between mid-pubertal (MP) and late pubertal (LP) subjects. Results: The majority of the subjects started training with a significant level of dehydration. During the training session, MP subjects lost 1.3 ± 0.8% of their pretraining body mass whereas LP subjects lost 1.9 ± 0.5% (P < .05). Sweat sodium concentration was 44.5 ± 23.3 mmol/L. Fluid intake from a water fountain was minimal. Subjects reported symptoms of dehydration during the session, which in some cases persisted throughout the night and the next day. The 24H USG was 1.028 ± 0.004 and 1.027 ± 0.005 g/mL for MP and LP, respectively. Conclusions: Adolescent judo athletes arrive to practice with a fluid deficit, do not drink enough during training, and experience symptoms of dehydration, which may compromise the quality of training and general well-being.
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“These fluid deficits are exacerbated when athletes arrive at training in a hypohydrated state [3,4].”
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Cited by
Principles of exercise physiology: responses to acute exercise and long-term adaptations to training
Rivera‐Brown, A. M., & Frontera, W. R. (2012) · PM&R · doi:10.1016/j.pmrj.2012.10.007 · Cited by 228
Suppiah, H. T., Ng, E. L., Wee, J., Taim, B. C., Huynh, M., Gastin, P. B., Chia, M., Low, C. Y., & Lee, J. K. W. (2021) · Nutrients · doi:10.3390/nu13114073 · Cited by 31
Fluid intake, hydration status and body mass changes in U-15 judo athletes during a training day
Ceylan, B., & Santos, L. (2022) · Acta Scientiarum. Health Sciences · doi:10.4025/actascihealthsci.v44i1.57233 · Cited by 8
Kaplan, A., Ceylan, B., Baydil, B., & Šimenko, J. (2025) · Applied Sciences · doi:10.3390/app151910304
Metadata
- Authors
- Rivera-Brown, A. M., & De Félix-Dávila, R. A.
- Venue
- International Journal of Sports Physiology and Performance
- Publisher
- Human Kinetics
- Published
- 2012-03
- Volume
- 7
- Issue
- 1
- Pages
- 39-46
- ISSN
- 1555-0265
- 1555-0273
- Cited by
- 29
- References
- 3
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